Just got this lens. I usually shoot with Zeiss glass, but Zeiss does not offer a long macro, so had to settle for something else. As to be expected, focus ring is not tight, but has some play, as all AF lenses have. Lens hood is made of hardish plastic, and I wonder how long it will survive field usage. The bayonet lock for the hood is difficult to engage, no comparison to the Zeiss 100 mm Makroplanar ZE. The f/32 depth of field markings on the lens are pure fantasy, by far too narrow as even ...

This is quite simply the sharpest lens I own. The word stellar comes to mind when using with a 5D MKII. BTW, even though the lens is midly long and designed for macro, that same sharpness applies to subjects at or near infinity. Before buying, I looked at Canon's MTF charts and compared several L-series lenses. I think I found 3 or 4 lenses that were sharper ... but they were all telphoto prime $5,000 and up. I knew before going in that a 180 mm macro lens, at nearest focus point, meant a ...

The Canon 180 is a great macro lens.. its super sharp Focusing is slow. and hunts but that is typical with macro. probably the sharpest lens ive ever seen. Its also a heavy lens and needs decent support and is difficult to handhold using natual light in macro makes a great portrait lens Problems: Heavy No image Stabilization with it was F 2.8 Auto Focus hunts even when limited to a range